DK154523B - LASING AND USING THE LASING - Google Patents
LASING AND USING THE LASING Download PDFInfo
- Publication number
- DK154523B DK154523B DK090484A DK90484A DK154523B DK 154523 B DK154523 B DK 154523B DK 090484 A DK090484 A DK 090484A DK 90484 A DK90484 A DK 90484A DK 154523 B DK154523 B DK 154523B
- Authority
- DK
- Denmark
- Prior art keywords
- ring
- rod
- axis
- locking
- locking ring
- Prior art date
Links
- 238000000137 annealing Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 3
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 208000029152 Small face Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/28—Chairs or stools with vertically-adjustable seats with clamps acting on vertical rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/20—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
- F16B2/22—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material
- F16B2/24—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal
- F16B2/241—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal of sheet metal
- F16B2/245—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal of sheet metal external, i.e. with contracting action
- F16B2/246—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal of sheet metal external, i.e. with contracting action the clip being released by tilting the clip or a part thereof to a position in which the axis of the openings surrounding the gripped elements is parallel to, or coincides with, the axis of the gripped elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32426—Plural distinct positions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Chairs Characterized By Structure (AREA)
Description
DK 154523 BDK 154523 B
i 5 Opfindelsen angår en låsering af den art, der er indrettet til at omslutte og glide på en cylindrisk stang eller et rør, og som ved kæntring omkring en akse, der står vinkelret på stangens akse, kan låses fast på stangen.The invention relates to a locking ring of the kind adapted to enclose and slide on a cylindrical rod or tube and which, by annealing around an axis perpendicular to the axis of the rod, can be locked onto the rod.
10 Låseringe af denne art anvendes mange steder, hvor man på enkel vis ønsker at kunne udløse en forbindelse mellem to dele. Man udnytter her, at den kæntrede ring vil støde imod røret eller stangen to steder 15 - nemlig ved de kanter, der findes mellem ringens inderflade og ringens over- henholdsvis underside.10 Lock rings of this kind are used in many places where you simply want to be able to trigger a connection between two parts. It is utilized here that the annular ring will abut against the tube or rod in two places 15 - namely at the edges that exist between the inner surface of the ring and the lower or lower side of the ring, respectively.
Beskrivelserne til dansk patent nr. 75447 og til britisk patent nr. 610 674 angår konstruktioner af 20 denne art.The descriptions of Danish Patent No. 75447 and of British Patent No. 610,674 relate to structures of this kind.
Sådanne låseringe fungerer udmærket ved relativt små belastninger, men størrelsen af to små flader, hvor ringen ligger an mod stangen i den kæntrede 25 stilling, bevirker, at konstruktionen ikke er god, hvor f.eks. ringen belastes forholdsvis meget og samtidig skal fastholdes mod forskydning på stangen eller røret. Kontaktfladerne er nemlig små og vil ofte have en tendens til at skære sig ind i røret, 30 således at dette ødelægges. Det kan også ske, at selve ringen deformeres, hvilket medfører, at holdekraften forringes.Such locking rings work very well at relatively small loads, but the size of two small faces where the ring abuts the rod in the tilted position causes the construction to be poor, where e.g. the ring is subjected to a relatively high load and at the same time must be held against shear on the rod or pipe. Namely, the contact surfaces are small and will often tend to cut into the tube, thereby destroying it. It may also happen that the ring itself is deformed, which causes the holding power to deteriorate.
Formålet med opfindelsen er derfor at anvise en låse-The object of the invention is therefore to provide a locking device.
DK 154523BDK 154523B
2 1 ring, der ikke har disse ulemper, d.v.s. en låsering, der uden væsentligt slid kan holde til forholdsvis store belastninger.2 1 ring which does not have these drawbacks, i.e. a locking ring that can withstand significant loads without significant wear.
5 Dette opnås ifølge opfindelsen ved, at de to diametralt modsatte områder af ringens inderside, som ved en kæntring bevæges mest, er således aksialt forskudt i forhold til hinanden mod kæntringsretningen, at de ligger i afstand fra stangen, når kæntrin-10 gen er bremset af en klemning i områderne i nærheden af vippeaksen.5 This is achieved according to the invention in that the two diametrically opposite regions of the inner face of the ring, which are most moved by a jaw, are so axially displaced relative to each other in the jaw direction that they are spaced from the rod when the jaw is braked of a pinch in the areas near the rocker axis.
Ved simpelt hen at fjerne de områder, hvor ringen ellers ved kæntring ville være kommet i kontakt med 15 røret, opnår man, at ringen i stedet vil klemme omkring røret ved områder, der nogenlunde ligger, hvor kæntringsaksen skærer ringen, d.v.s. forskudt ca.By simply removing the areas where the ring would otherwise come into contact with the tube, the ring achieves that the ring will instead clamp around the tube at areas which are roughly located where the cutting axis intersects the ring, i.e.. staggered approx.
90° i forhold til de punkter, hvor en ikke-afskåret ring ville have ramt røret.90 ° to the points where a non-cut ring would have hit the tube.
2020
Der opnås således både et større kontaktareal, ligesom der er tale om en klemmekraft, der virker ved to diametralt modsatte områder på stangen, og som følge heraf kan en sådan låsering tåle en forholdsvis stor 25 belastning uden beskadigelser eller slid. Klemmekraf-ten gør det endvidere enkelt atter at udløse forbindelsen, fordi der er tale om et stort vægtstangsforhold.Thus, both a larger contact area is obtained, as is a clamping force acting at two diametrically opposite regions of the rod, and as a result such locking ring can withstand a relatively large load without damage or wear. Furthermore, the clamping force makes it easy to release the connection again, because there is a large lever ratio.
30 Det er klart, at størrelsen af den afskårne del skal dimensioneres efter ringens spillerum på stangen eller røret, således at den ønskede klemning opnås.It is clear that the size of the cut portion must be sized according to the clearance of the ring on the rod or tube so that the desired clamping is achieved.
Det er ikke nødvendigt at skære hele ringens over-It is not necessary to cut the entire ring
DK 154523BDK 154523B
3 1 eller underside bort, hvilket er omhandlet i krav 2, hvor en øvre skråflade forløber mellem et vinkelret på ringens akse gående øvre endefladepart og ringens ene forskudte område, og at en nedre skråflade forlø-5 ber mellem et diametralt modsatliggende, vinkelret på ringens akse gående nedre endefladeparti og ringens andet forskudte område. Herved opnås, at den resterende del af ringens over- og underside kan anvendes som anlægsflader for f.eks. organer til at kæntre 10 ringen med og til atter at udløse kæntringen.A bottom or bottom face, as claimed in claim 2, wherein an upper inclined surface extends between a perpendicular to the axis of the ring and the upper end portion of the ring and one of the displaced regions of the ring, and a lower inclined surface extends between a diametrically opposite, perpendicular to the ring. axis extending lower end portion and second ring offset region. Hereby it is achieved that the remaining part of the upper and lower surface of the ring can be used as contact surfaces for e.g. means for tapping the ring with and for releasing the ring.
I de fleste tilfælde vil det være enkelt at fremstille en ring hvor de to skråflader er symmetriske om ringens kæntringsakse, som dette er beskrevet i krav 15 3. F.eks. kan man fremstille ringen ved at bearbejde denne først fra den ene side og derefter fra den anden side med det samme værktøj.In most cases, it will be easy to make a ring in which the two oblique surfaces are symmetrical about the annular axis of the ring, as described in claim 15 3. For example. one can make the ring by machining it first from one side and then from the other side with the same tool.
Det er hensigtsmæssigt, hvis en låsering ifølge opfin-20 delsen er indrettet til låsning af en trykfjeder.It is convenient if a locking ring according to the invention is arranged for locking a compression spring.
Denne vil nemlig af sig selv kunne kæntre ringen, og dette er omhandlet i krav 4.This can of course be annulled by the ring, and this is referred to in claim 4.
Endeligt kan en låsering ifølge opfindelsen være 25 ejendommelig ved at både ringen og stangen/røret er hærdede, hvilket er omhandlet i krav 5. Herved opnås en låsering, der uden problemer vil kunne anvendes i lang tid og ved store belastninger.Finally, a locking ring according to the invention can be characterized in that both the ring and the bar / pipe are cured, as defined in claim 5. This provides a locking ring which can be used without problems for a long time and under heavy loads.
30 Opfindelsen angår desuden anvendelse af en sådan låsering til en højdeindstillingsmekanisme, f.eks. i en stol, idet det er enkelt at lave en mekanisme, der f.eks. er fjedrende i låst stilling, på denne måde. Der kelides gascylindre til dette formål, men .The invention further relates to the use of such a locking ring for a height adjustment mechanism, e.g. in a chair, since it is easy to make a mechanism that e.g. is resilient in the locked position, in this way. Gas cylinders are chilled for this purpose, however.
DK 154523 BDK 154523 B
4 1 disse er dyre, og har en begrænset holbarhed. Desuden har sådanne gascylindre vist sig at være farlige, idet de kan eksplodere.4 1 these are expensive and have a limited shelf life. Furthermore, such gas cylinders have been found to be dangerous as they can explode.
5 I modsætning hertil vil en låsering ifølge opfindelsen fungere upåklageligt i endog meget lang tid, og det vil samtidigt være billigere.In contrast, a locking ring according to the invention will function impeccably for even a very long time and at the same time it will be cheaper.
Opfindelsen vil i det følgende blive nærmere beskrevet 10 under henvisning til tegningen, hvor fig. 1 viser et snit gennem en stol, hvor en låsering ifølge opfindelsen anvendes som mekanisme til indstilling af sæde-15 højde, fig. 2 viser et snit gennem en ring ifølge opfindelsen set i pilenes retning langs linien II-II på fig. 3, og 20 fig. 3 viser ringen fra fig. 2 set ovenfra.The invention will be described in more detail below with reference to the drawing, in which 1 shows a section through a chair, where a locking ring according to the invention is used as a mechanism for adjusting seat height; FIG. 2 shows a section through a ring according to the invention seen in the direction of the arrows along the line II-II in FIG. 3, and FIG. 3 shows the ring of FIG. 2 from above.
På fig. 1 er vist en kontorstol, der i sin indstillingsmekanisme anvender en låsering ifølge opfindel-25 sen. Dette skal på ingen måde opfattes således, at opfindelsen er begrænset til brug i stole, men udelukkende som et eksempel.In FIG. 1, an office chair is shown which, in its adjustment mechanism, uses a locking ring according to the invention. This should in no way be construed as limiting the invention to use in chairs, but by way of example only.
Stolen består af et stel 1 med et opadragende, åbent 30 rør. Ved hjælp af foringer 7, 7' er der forskydeligt i stelrøret 1 lejret et sæderør 2, der bærer stolens seede 12. Hvilende på en fjeder 9 er der anbragt et rør 4 inde i stolen. Fjederen . 9 øger brugerens komfort, idet den tjener til affjedring af seedet 12.The chair consists of a frame 1 with an upward, open 30 pipe. By means of linings 7, 7 ', a seat tube 2 bearing the seat 12 of the chair is slidably mounted in the frame tube 1. On a spring 9 a tube 4 is arranged inside the chair. The spring. 9 increases user comfort as it serves to sprout the seed 12.
DK 154523BDK 154523B
5 1 Fjederen 9 beskytter også mekanismen mod hårde belastninger. Ved låsning af ringen vil fjederen 9 nemlig optage en stor del af belastningen. Dette vil nedsætte sliddet på låseringen.5 1 The spring 9 also protects the mechanism against heavy loads. By locking the ring, the spring 9 will take up a large part of the load. This will reduce the wear on the locking ring.
5 Røret 4 er omgivet af en på dette forskydelig krave 6, der står i forbindelse rtied en indstillingsfjeder 8, der er fastgjort ved stellets bund. Sæderøret 2 har desuden en stopknast 3.The tube 4 is surrounded by an adjustable spring 6 which is connected to a setting spring 8 which is attached to the base of the frame. The seat tube 2 also has a stop cam 3.
1010
Mellem stopknasten 3 og kraven 6 er der rundt omkring røret 4 anbragt en ring 5 ifølge opfindelsen, der sammen med røret 4 danner en låsering ifølge opfindelsen.A ring 5 according to the invention is arranged between the stop cam 3 and the collar 6, which together with the tube 4 forms a locking ring according to the invention.
1515
Modsat stopknasten 3 er ringen 5 forbundet med en udløsningsforbindelse 10, der kan bevæges med et håndtag 11.Opposite the stop cam 3, the ring 5 is connected to a release connection 10 which can be moved by a handle 11.
20 Virkemåden af stolen er som følgers Når udløsningsforbindelsen 10 er upåvirket, vil kraven 6 på grund af fjederen 8 presses opad og på grund af dette og påvirkningen fra stopknasten 3 kæntre ringen, der vil klemme sig fast på røret 4. Sædet 23 er nu fast-25 låst, men vil alligevel være affjedret af fjederen 9.20 The operation of the chair is as follows When the release connection 10 is unaffected, the collar 6 due to the spring 8 is pressed upwards and because of this and the influence of the stop cam 3 the ring which will clamp on the tube 4. The seat 23 is now fixed -25 locked, but will still be sprung by the spring 9.
Hvis man ønsker at hæve eller sænke sædet 12, påvirker man med håndtaget 11 udløsningsforbindelsen 10. Dette 30 trykker ringens 5 ene side ned mod fjederkraften fra fjederen 8, således at ringen ikke længere er kæntret.If you wish to raise or lower the seat 12, the release connection 10. with the handle 11 is actuated. This 30 depresses one side of the ring 5 against the spring force from the spring 8, so that the ring is no longer felt.
Hvis man nu aflaster sædet, vil fjederen 8 presseIf you now relieve the seat, the spring 8 will squeeze
DK 154523 BDK 154523 B
6 1 kraven 6, ringen 5 og stopknasten 3 opad. Sædet 12 vil altså hæves, og dette vil ske, indtil håndtaget 11 atter slippes, hvorefter ringen 5 øjeblikkeligt vil kæntre.6 1 the collar 6, the ring 5 and the stop button 3 upwards. The seat 12 will thus be raised and this will be done until the handle 11 is released again, after which the ring 5 will immediately tear.
55
Det samme gør sig gældende, hvis man ønsker at sænke sædehøjden. Blot skal man så belaste sædet yderligere, så fjederen 8 trykkes sammen. Denne bør i øvrigt have en løfteevne på cirka 45 kilo, hvilket giver 10 en kontorstol, der kan bruges af næsten alle mennesker med et godt resultat.The same applies if you want to lower the seat height. Simply load the seat further so that the spring 8 is compressed. This should also have a lifting capacity of about 45 kilos, giving 10 an office chair that can be used by almost all people with a good result.
På fig. 2 og 3 ses en ring ifølge opfindelsen mere detaljeret. Ringen 5 er på oversiden udformet med 15 en vandret flade 12, der tjener som anlægsflade for udløsningsforbindelsen. Diametralt modsat denne flade findes en krumflade 14, til anlæg mod stopknastens underside.In FIG. 2 and 3, a ring according to the invention is shown in more detail. The ring 5 is formed on the upper side with a horizontal surface 12 which serves as abutment surface for the release connection. Diametrically opposite this surface is a curved surface 14 for abutment to the underside of the stop cam.
20 Inde i ringen 5 er med skraveringer 15, 15' antydet, hvor ringen klemmer omkring stangen. Naturligvis findes der to lignende områder overfor de to viste.20 Inside the ring 5 are indicated by shades 15, 15 'where the ring clamps around the rod. Of course, there are two similar areas opposite the two shown.
En låsering ifølge opfindelsen fremstilles hensigts-25 mæssigt af metal og især af hærdet stål. dog kan man forestille sig andre og blødere materialet, hvis forholdene taler herfor, f.eks. hvis belastningen er ringe.A locking ring according to the invention is conveniently made of metal and especially of hardened steel. however, one can imagine other and softer material if the circumstances warrant it, e.g. if the load is low.
30 Den viste udførelsesform har vist sig at fungere fremragende i en kontorstol. Det ligger imidlertid inden for opfindelsens rammer at udforme især ringen på mange forskellige måder alt efter, hvad den skal bruges til. Blot er det vigtigt, at man skærer tilpas 7The embodiment shown has proven to work excellently in an office chair. However, it is within the scope of the invention to design in particular the ring in many different ways according to what it is to be used for. It is only important that you cut fit 7
DK 154523 BDK 154523 B
1 meget materiale væk i forhold til frigangen mellem ringen og stangen, således at den ønskede klemmevirkning opnås. D.v.s., at man skal skære så meget materiale væk, at ringen vil klemme sig fast på røret, 5 før nogen anden del af ringen kommer i berøring med røret.1 much material away from the clearance between the ring and the rod so that the desired clamping effect is obtained. That is, one has to cut away so much material that the ring will clamp onto the tube 5 before any other part of the ring comes into contact with the tube.
I mange tilfælde vil det være mere hensigtsmæssigt at anvende et rør end en stang. Røret vil nemlig 10 kunne fjedre en smule, og dette vil nedsætte sliddet.In many cases it would be more appropriate to use a pipe than a rod. Namely, the tube will be able to spring slightly and this will reduce the wear.
Desuden vil fjedringen hjælpe med til atter at udløse forbindelsen. Det er klart, at der ikke sker de store deformationer af hærdede stålrør, men selv en deformation på nogle få hundrededele af en millimeter kan 15 være af betydning.In addition, the suspension will help to release the connection again. It is clear that the large deformations of hardened steel pipes do not occur, but even a deformation of a few hundredths of a millimeter can be significant.
20 25 3020 25 30
Claims (6)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK090484A DK154523C (en) | 1984-02-23 | 1984-02-23 | LASING AND USING THE LASING |
| PCT/DK1985/000010 WO1985003746A1 (en) | 1984-02-23 | 1985-02-21 | Locking ring |
| EP85900987A EP0174325B1 (en) | 1984-02-23 | 1985-02-21 | Locking ring |
| JP60500859A JPS61501277A (en) | 1984-02-23 | 1985-02-21 | lock ring |
| DE8585900987T DE3569962D1 (en) | 1984-02-23 | 1985-02-21 | Locking ring |
| AT85900987T ATE42804T1 (en) | 1984-02-23 | 1985-02-21 | CLAMPING RING. |
| AU39912/85A AU3991285A (en) | 1984-02-23 | 1985-02-21 | Lasering |
| US06/798,462 US4664549A (en) | 1984-02-23 | 1985-02-21 | Locking ring |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK090484A DK154523C (en) | 1984-02-23 | 1984-02-23 | LASING AND USING THE LASING |
| DK90484 | 1984-02-23 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK90484D0 DK90484D0 (en) | 1984-02-23 |
| DK90484A DK90484A (en) | 1985-08-24 |
| DK154523B true DK154523B (en) | 1988-11-21 |
| DK154523C DK154523C (en) | 1989-05-16 |
Family
ID=8098838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK090484A DK154523C (en) | 1984-02-23 | 1984-02-23 | LASING AND USING THE LASING |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4664549A (en) |
| EP (1) | EP0174325B1 (en) |
| JP (1) | JPS61501277A (en) |
| AU (1) | AU3991285A (en) |
| DE (1) | DE3569962D1 (en) |
| DK (1) | DK154523C (en) |
| WO (1) | WO1985003746A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE468584B (en) * | 1987-05-05 | 1993-02-15 | Isaberg Ab | DEVICE FOR A LIFTING APPLIANCE FOR LOADING A LONG-TERM RELEASABLE ELEMENT |
| DE4027720C2 (en) * | 1990-08-31 | 2001-05-17 | Reinhard Hertel | Frame or leg arrangement, in particular of a piece of furniture, with at least one telescopically extendable supporting leg and method for its production |
| US5265542A (en) * | 1991-04-18 | 1993-11-30 | Allard Gene R | Motion control apparatus |
| TW205087B (en) * | 1991-12-13 | 1993-05-01 | Uitimate Support Systems Inc | |
| US5823300A (en) * | 1995-01-31 | 1998-10-20 | Pubot Giken Co., Ltd. | Brake device of linear moving body |
| FR2806276A1 (en) * | 2000-03-14 | 2001-09-21 | Polmarg | Support for stool used in food industry comprises two telescopic tubes, sliding tube being biased upwards by spring, lever mounted on fixed tube having lip which fits into notches on sliding tube to fix its position |
| GB2365761A (en) * | 2000-08-12 | 2002-02-27 | Chub Leisure Ltd | Adjustable telescopic strut |
| US6520379B1 (en) | 2000-08-30 | 2003-02-18 | Jared D. Campbell | Power lever arm |
| US20060249060A1 (en) * | 2005-05-05 | 2006-11-09 | Formway Furniture Limited | Height adjustable furniture component |
| WO2011156667A1 (en) * | 2010-06-10 | 2011-12-15 | Grand Rapids Controls Co., Llc | Lift strut with mechanical spring element |
| GB2483876A (en) * | 2010-09-22 | 2012-03-28 | Nicholas David Le Sueur | Seat height adjustment mechanism |
| SE1251208A1 (en) * | 2012-10-25 | 2014-04-26 | Kinnarps Ab | locking device |
| GB2560178A (en) * | 2017-03-01 | 2018-09-05 | Fox International Group Ltd | An adjustable leg, and an article with an adjustable leg |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE86246C1 (en) * | ||||
| SE152278C1 (en) * | ||||
| DE674213C (en) * | 1937-01-26 | 1939-04-11 | Fr Drabert Soehne | Locking device for the nut on the height-adjustable screw spindle shaft of the seat of a swivel chair |
| SE126404C1 (en) * | 1944-06-05 | 1949-10-18 | Aktiebolaget Odelberg & Olson | |
| GB610674A (en) * | 1946-04-13 | 1948-10-19 | John Harrison Cuthbertson | Improvements in locking means for telescopic tubes and the like |
| SE140643C1 (en) * | 1946-05-31 | 1953-06-02 | ||
| DK75447C (en) * | 1948-05-04 | 1953-02-16 | Carl Corneliussen | Locking mechanism for a length-adjustable leg, eg a chair leg. |
| US3195531A (en) * | 1963-08-05 | 1965-07-20 | Ellsworth E Groff | Outdoor cooking appliances |
| US3584821A (en) * | 1969-06-24 | 1971-06-15 | George T Glebe | Firearm support |
| SE366366B (en) * | 1972-04-14 | 1974-04-22 | Byggstaempf E B Ind Ab | |
| US4169687A (en) * | 1978-08-11 | 1979-10-02 | Schull George R | Lock for extendable leg assembly |
-
1984
- 1984-02-23 DK DK090484A patent/DK154523C/en not_active IP Right Cessation
-
1985
- 1985-02-21 AU AU39912/85A patent/AU3991285A/en not_active Abandoned
- 1985-02-21 JP JP60500859A patent/JPS61501277A/en active Pending
- 1985-02-21 WO PCT/DK1985/000010 patent/WO1985003746A1/en active IP Right Grant
- 1985-02-21 US US06/798,462 patent/US4664549A/en not_active Expired - Fee Related
- 1985-02-21 EP EP85900987A patent/EP0174325B1/en not_active Expired
- 1985-02-21 DE DE8585900987T patent/DE3569962D1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4664549A (en) | 1987-05-12 |
| DK90484A (en) | 1985-08-24 |
| JPS61501277A (en) | 1986-06-26 |
| AU3991285A (en) | 1985-09-10 |
| EP0174325B1 (en) | 1989-05-03 |
| EP0174325A1 (en) | 1986-03-19 |
| DK154523C (en) | 1989-05-16 |
| DE3569962D1 (en) | 1989-06-08 |
| DK90484D0 (en) | 1984-02-23 |
| WO1985003746A1 (en) | 1985-08-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |